Xi, Hui
Peng, Ying
Xie, Wanqin
Pang, Jialun
Ma, Na
Yang, Shuting
Peng, Jinping
Wang, Hua
Funding for this research was provided by:
Hunan Provincial Science and Technology Department (2015TP2029, 2017SK1030, 2019SK1010)
Hunan Provincial Science and Technology Department (2019SK1013)
Article History
Received: 3 January 2020
Accepted: 27 March 2020
First Online: 4 June 2020
Ethics approval and consent to participate
: Written informed consent was obtained from the participants for genetic tests. This study was approved by the Ethics Committee of Hunan Provincial Maternal and Child Health Care Hospital.
: Written informed consent was obtained for publication.
: The authors declare that they have no competing interests.